Check file is belong to repository

[mishazawa]

If I try to run git-history in folder outside of repository then git-history run server and throw exception.

$ git-file-history .
Running at http://localhost:5000
Server error { Error: Command failed: git log --max-count=10 --pretty=format:{"hash":"%h","author":{"login":"%aN"},"date":"%ad"}, --date=iso HEAD -- .
fatal: Not a git repository (or any parent up to mount point /home/misha)
Stopping at filesystem boundary (GIT_DISCOVERY_ACROSS_FILESYSTEM not set).


    at makeError (/usr/lib/node_modules/git-file-history/node_modules/execa/index.js:174:9)
    at Promise.all.then.arr (/usr/lib/node_modules/git-file-history/node_modules/execa/index.js:278:16)
    at process._tickCallback (internal/process/next_tick.js:68:7)
  code: 128,
  stdout: '',
  stderr:
   'fatal: Not a git repository (or any parent up to mount point /home/misha)\nStopping at filesystem boundary (GIT_DISCOVERY_ACROSS_FILESYSTEM not set).\n',
  failed: true,
  signal: null,
  cmd:
   'git log --max-count=10 --pretty=format:{"hash":"%h","author":{"login":"%aN"},"date":"%ad"}, --date=iso HEAD -- .',
  timedOut: false,
  killed: false }

I propose to check is command running inside folder that belong to repository by git rev-parse --is-inside-work-tree before running server